Home / 331,564.20-496,763.10-272,077.80

Finding the Fourth Proportional to 331,564.20, 496,763.10 and 272,077.80

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Solution

The fourth proportional to 331,564.20, 496,763.10 and 272,077.80 is: 407,638.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,564.20 : 496,763.10 = 272,077.80 : x
  2. Step 2: Convert to fraction form
    331,564.20/496,763.10 = 272,077.80/x
  3. Step 3: Cross multiply
    331,564.20x = 496,763.10 × 272,077.80
  4. Step 4: Simplify right side
    331,564.20x = 135,158,211,369.18
  5. Step 5: Solve for x
    x = 135,158,211,369.18/331,564.20
  6. Step 6: Final answer
    x = 407,638.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.